brake sensor TOYOTA HIGHLANDER 2001 Service User Guide

05-830
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1020 Author
: Date
:
DTC C1246/46 MALFUNCTION IN MASTER CYLINDER
PRESSURE SENSOR
CIRCUIT DESCRIPTION
Master cylinder pressure sensor is connected to the skid control ECU in the actuator.
DTC No.DTC Detecting ConditionTrouble Area
C1246/46
When any of the following (1 to 5) is detected:
(1) All the following conditions continues for at least 30 se-
conds.

Vehicle speed is more than 4 mph (7 km/h).

PMC terminal voltage does not change by more than
0.005 V once it exceeds 0.86 V.
(2) PMC terminal receives interference at least 7 times
within 5 sec.
(3) All the following conditions continues for at least 1.2
seconds.

Stop switch is OFF.

PMC terminal voltage is more than 0.86 V or less than 0.3
V.
(4) All the following conditions continues for at least 1.2
seconds.

IG1 terminal voltage is between 9.5 and 17.2 V.

VCM terminal voltage is not within 4.4 and 5.6 V.
(5) All the following conditions continues for at least 1.2
seconds.

VCM terminal voltage is between 4.4 and 5.6 V.

PMC terminal voltage is not within 0.14 and 4.85 V.

Master cylinder pressure sensor

Master cylinder pressure sensor circuit
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 when using the hand-held tester and start from step 2 when not using the
hand-held tester.
1 READ VALUE OF HAND-HELD TESTER(MASTER CYLINDER PRESSURE
SENSOR)
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine.
(c) Select the DATA LIST mode on the hand-held tester.
ItemMeasurement Item /
Range (Display)Normal Condition
MAS CYL PRS 1Master cylinder pressure sensor 1
reading / min.: 0 V, max.: 5 VWhen brake pedal is released : 0.3 to
0.9 V
(d) Check that the brake fluid pressure value of the master cylinder pressure sensor indicated on the
hand-held tester, changes when the brake pedal is depressed.
Standard:
Brake fluid pressure value should change.
NG Go to step 2
OK
REPLACE ABS & TRACTION ACTUATOR ASSY (SEE PAGE 32-37)
05H3Q-02

- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
05-45
235 Author
: Date
:
Hand-held Tester DisplayDiagnostic Note Normal Condition* Measurement Item/Range
(Display)
AF FT B1 S1
Short term fuel trim associated with bank
1, sensor 1/
Minimum: 0, Maximum: 1.999

Value less than 1 (0.000 to
0.999) = LEAN

Stoichiometric Air-Fuel Ratio=1

Value greater than 1 (1.001 to
1.999) = RICH
-
FUEL SYS #1
Fuel system status (Bank 1) /
OL or CL or OL DRIVE or
OL FAULT or CL FAULT
Idling after warming up: CL

OL (Open Loop) : Has not yet sa-
tisfied conditions to go closed
loop

CL (Closed Loop) : Using heated
oxygen sensor(s) as feed back
for fuel control

OL DRIVE: Open loop due to
driving conditions (fuel enrich-
ment)

OL FAULT: Open loop due to de-
tected system fault

CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FC IDLIdle fuel cut/ ON or OFFFuel cut operation: ON
FC IDL = ON when throttle valve
is fully closed and engine speed is
over 1,500 rpm
MILMIL status/ ON or OFFMIL ON: ON-
STARTER SIGStarter signal/ ON or OFFCranking: ON-
A/C SIGA/C signal/ ON or OFFA/C ON: ON-
PNP SW [NSW]PNP switch signal/ ON or OFFP or N position: ON-
ELECT LOAD SIGElectrical load signal/ ON or OFFDefogger switch ON: ON-
STOP LIGHT SWStop lamp switch/ ON or OFF
Brake pedal depressed: ON

Brake pedal released: OFF-
PS OIL PRESS SWPower steering signal/ ON or OFF

While turning steering wheel: ON

While not turning steering wheel:
OFFIdle-up control is performed when
PS is ON
PS SIGNALPower steering signal/
ON or OFFWhen steering wheel is turnedThis signal is usually ON until Igni-
tion switch is turned OFF
FUEL PUMP / SPDFuel pump / speed status /
ON/H or OFF/M,LIdling: ON-
A/C MAG CLUTCHA/C magnet clutch status /
ON or OFFA/C magnet clutch ON: ON-
EVAP VSVEVAP VSV status control /
ON or OFFVSV operating: ONEVAP VSV is controlled by ECM
(ground side duty control)
VVT CTRL B1VVT control status (Bank 1) /
ON or OFFVVT system operation: ON-
IGNITIONIgnition counter/ Minimum: 0,
Maximum: 4000 to 400-
CYL #1, #2, #3, #4Misfire ratio of cylinder 1 to 4/
Minimum: 0 %, Maximum: 50 %0 %This item is displayed in only idling
MISFIRE LOADEngine load for first misfire range/
Minimum: 0 g/rev, Maximum: 3.98 g/rev.Misfire 0: 0 g/rev.'
MISFIRE RPMEngine RPM for first misfire range/
Minimum: 0 rpm, Maximum: 6,375 rpmMisfire 0: 0 rpm'
FC TAUFuel Cut TAU: Fuel cut during very light
load/ ON or OFFFuel cut operating: ON
Fuel cut is being performed under
very light load to prevent engine
combustion from becoming incom-
plete
CHECK MODECheck mode/ ON or OFFCheck mode ON: ONSee page 05-40

- DIAGNOSTICSSFI SYSTEM (3MZ-FE)(From August, 2004)
05-409
599 Author
: Date
:
Hand-held Tester DisplayDiagnostic Note Normal Condition * Measurement Item/Range
(Display)
FUEL SYS #1
Fuel system status (Bank 1) /
OL or CL or OL DRIVE or
OL FAULT or CL FAULT
Idling after warming up: CL

OL (Open Loop): Has not yet sa-
tisfied conditions to go closed
loop

CL (Closed Loop): Using heated
oxygen sensor(s) as feed back
for fuel control

OL DRIVE: Open loop due to
driving conditions (fuel enrich-
ment)

OL FAULT: Open loop due to de-
tected system fault

CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FUEL SYS #2
Fuel system status (Bank 2) /
OL or CL or OL DRIVE or
OL FAULT or CL FAULT
Idling after warming up: CL

OL (Open Loop): Has not yet sa-
tisfied conditions to go closed
loop

CL (Closed Loop): Using heated
oxygen sensor(s) as feed back
for fuel control

OL DRIVE: Open loop due to
driving conditions (fuel enrich-
ment)

OL FAULT: Open loop due to de-
tected system fault

CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FC IDLFuel cut idle/ ON or OFFFuel cut operation: ON
FC IDL = ON when throttle valve
is fully closed and engine speed is
over 1,500 rpm
MILMIL status/ ON or OFFMIL ON: ON'
STARTER SIGStarter signal/ ON or OFFCranking: ON'
A/C SIGA/C signal/ ON or OFFA/C ON: ON'
PNP SW [NSW]PNP switch signal/ ON or OFFP or N position: ON'
ELECT LOAD SIGElectrical load signal/
ON or OFF
Taillamp switch ON: ON

Defogger switch ON: ON'
STOP LIGHT SWStop light switch/
ON or OFF
Brake pedal depressed: ON

Brake pedal released: OFF'
PS OIL PRESS SWPower steering oil pressure switch
signal/ ON or OFF

While turning the steering wheel:
ON

While not turning the steering
wheel: OFF
Idle-up control is performed when
PS is ON
PS SIGNALPower steering signal/
ON or OFFWhen steering wheel is turnedThis signal is usually ON until the
Ignition switch is turned OFF
INTAKE CTL VSV1VSV status for intake control (bank
1)/ ON or OFFVSV operation: ON'
INTAKE CTL VSV 2VSV status for intake control (bank
2)/ ON or OFFVSV operation: ON'
FUEL PUMP / SPDFuel pump/speed status/
ON/H or OFF/M, LIdling: ON'
A/C MAG CLUTCHA/C magnet clutch status/
ON or OFFA/C magnet clutch ON: ON'

05-1674
- DIAGNOSTICSAUDIO SYSTEM
1864 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
NOISE OCCURS
INSPECTION PROCEDURE
1 CHECK OF SPEAKER INSTALLATION
(a) Check the speaker installation condition.
(1) Check that each speaker is securely installed.
OK: Malfunction disappears.
HINT:
The radio is equipped with a noise prevention system that blocks only excessively loud noise. If loud noise
occurs, check whether or not the ground on the antenna installation part and the proper noise-prevention
equipment are all installed, and whether or not there is improper wiring.
Condition in which noise occursNoise type
Depressing the acceleration pedal increases the noise, and stopping the
engine stops the noise immediately.Alternator noise
Noise occurs during A/C or the heater operation.Blower motor noise
Rapid acceleration during the drive on an unpaved road or after the ignition
switch is turned on makes noise.Fuel pump noise
Pressing and then releasing the horn switch, and keeping pressing the horn
switch makes noise.Horn noise
Quiet noise is heard while the engine is running, but stops with the engine.Ignition noise
Noise occurs in turn with the blink of the turn signal flash.Flasher noise
Noise occurs during window washer operation.Washer noise
Noise occurs while the engine is running, and it continues even after the en-
gine is stopped.Water temperature sensor noise
Noise occurs during wiper operation.Wiper noise
Noise occurs when the brake pedal is depressed.Stop light switch noise
OthersStatic electricity on the vehicle
HINT:

Identify the condition in which the noise occurs, and check the noise filter on the related part.

Make sure first that there is no noise from outside. Failing to do so makes the noise occurrence source
detection difficult and leads to misdiagnosis.

The noise should be removed in descending order of loudness.
NG INSTALL IT PROPERLY
OK
IDENTIFICATION OF NOISE SOURCE
055M1-10

05ETG-02
05-1536
- DIAGNOSTICSLIGHTING SYSTEM
1726 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
OPERATION CHECK
1. ILLUMINATED ENTRY SYSTEM OPERATION CHECK
(a) Illuminated entry system controls the following lamps:

Ignition key cylinder lamp

Interior lamp (Room lamp assy No.1)

Personal lamp (Overhead J/B)
(b) Check that the lamps come on after:
(1) Unlocking any door that was closed and locked with the ignition switch off.
(c) Check that the lamps fade out after:
(1) Leaving the doors unlocked for 15 seconds
(2) Turning the ignition switch to the ACC or ON position
(3) Locking all the doors
(d) Check that the lamps stay ON for at least 15 seconds after opening any of the doors, then fade out
again after 15 seconds.
(e) Check that the lamps fade out after:
(1) Leaving the doors unlocked for 15 seconds
(2) Locking all the doors
(f) Check that the lamps stay ON for at least 15 seconds after opening any of the doors, then fade out
again in 15 seconds after closing all the doors.
(g) Check that the lamps come on when opening any of the doors or turning the ignition switch off from
the ACC or ON position.
2. LIGHT AUTO TURN OFF OPERATION CHECK
(a) Turn the ignition switch to the ON position, and switch the headlamps into the TAIL or HEAD position.
(b) Turn the ignition switch off and open the driver's door, and check that the headlamps go off immediate-
ly.
(c) Turn the ignition switch to the ON position, and switch the headlamps into the AUTO position.
(d) Turn the ignition switch off and open the driver's door when operating the automatic light control sys-
tem, and check that the headlamps go off immediately.
3. AUTOMATIC LIGHT CONTROL OPERATION CHECK
HINT:
Perform the operation check at a location with bright surroundings.
(a) Turn the ignition switch to the ON position.
(b) Turn the headlamp dimmer switch to the AUTO position.
(c) Cover the automatic light control sensor and check that the taillamp and headlamp in order.
(d) Uncover the automatic light control sensor and check that the headlamp and taillamp go off in order.
4. DAYTIME RUNNING LIGHT OPERATION CHECK
(a) Check that the high beams come on when the headlamp switch is off with the engine running and park-
ing brake released.
(b) Check that the high beams go off when turning the headlamp dimmer switch into the TAIL or HEAD
(LOW) position under the condition as shown in (a).
(c) Check that the high beams go off when turning the ignition switch off under the condition as shown
in (a).

05-940- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1130 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0724 BRAKE SWITCH ºBº CIRCUIT HIGH
CIRCUIT DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling while driving in lock-up condition, when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signals to the ECM. Then the ECM cancels the op-
eration of the lock-up clutch while braking is in progress.
DTC No.DTC Detecting ConditionTrouble Area
P0724
The stop light switch remains ON even when the vehicle is
driven in a GO (30 km/h) and STOP (3 km/h) fashion 5 times.
(2-trip detection logic).
Short in stop light switch signal circuit

Stop light switch

ECM
MONITOR DESCRIPTION
This DTC indicates that the stop light switch remains on. When the stop light switch remains ON during ºstop
and goº driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and the ECM
stores the DTC. The vehicle must stop (less than 3 km/h (2 mph)) and go (30 km/h (19 mph) or more) 5 times
for two driving cycles in order to detect malfunction.
MONITOR STRATEGY
Related DTCsP0724: Stop light switch/Range check/Rationality
Required sensors/ComponentsStop light switch, Vehicle speed sensor
Frequency of operationContinuous
DurationGO and STOP 5 times
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
The monitor will run whenever this DTC is not present.See page 05-895
Battery voltage8 V or more
Ignition switchON
StarterOFF
GO (Vehicle speed is 30 km/h (18.63 mph) or more)Once
STOP (Vehicle speed is less than 3 km/h (1.86 mph))Once
TYPICAL MALFUNCTION THRESHOLDS
Brake switchRemain ON during GO and STOP 5 times
05F3C-05

E65594
Free Pushed in2
3
41
05-942- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1132 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
HINT:
According to the DATA LIST displayed by the OBD II scan tool or hand-held tester, you can read the value
of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of
troubleshooting is one method to shorten labor time.
(a) Turn the ignition switch off.
(b) Connect the OBD II scan tool or hand-held tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Push the ºONº button of the OBD II scan tool or the hand-held tester.
(e) When you use hand-held tester:
Select the item ºDIAGNOSIS/ENHANCED OBD II/DATA LISTº.
(f) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/
Range (display)Normal Condition
STOP LIGHT SWStop light SW Status/
ON or OFF
Brake Pedal is depressed: ON

Brake Pedal is released: OFF
1 INSPECT STOP LAMP SWITCH ASSY
(a) Remove the stop lamp switch assy.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Switch positionTester ConnectionSpecified Condition
Switch pin free1 - 210 kW or higher
Switch pin pushed in=Below 1 W
Switch pin free3 - 4Below 1 W
Switch pin pushed in=10 kW or higher
NG REPLACE STOP LAMP SWITCH ASSY
OK

- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-949
1139 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0746 PRESSURE CONTROL SOLENOID ºAº
PERFORMANCE (SHIFT SOLENOID VALVE
SL1)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear position (1st, 2nd, 3rd or O/D
gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves and valve body.
DTC No.DTC Detecting ConditionTrouble Area
P0746The gear required by the ECM does not match the actual gear
when driving (2-trip detection logic)

Shift solenoid valve SL1 remains open or closed

Valve body is blocked

Shift solenoid valve SL1

Automatic transaxle (clutch, brake or gear etc.)

ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. According to the input shaft
revolution, intermediate (counter) shaft revolution and output shaft revolution, the ECM detects the actual
gear position (1st, 2nd, 3rd or O/D gear position). When the gear position commanded by the ECM and the
actual gear position are not same, the ECM illuminates the MIL.
Example:
When either condition (a) or (b) is met, the ECM detects a malfunction.
(a) The ECM commands the 1st gear, but the actual gear is 2nd.
(b) The ECM commands the 2nd gear, but the actual gear is 1st.
MONITOR STRATEGY
Related DTCs
P0746:
Shift solenoid valve SL1/OFF malfunction
Shift solenoid valve SL1/ON malfunction
Required sensors/ComponentsShift solenoid valve SL1, Speed sensor (NT), Speed sensor (NC), Crankshaft posi-
tion sensor (NE)
Frequency of operationContinuous
Duration
OFF malfunction, ON malfunction (A)
0.8 sec.
ON malfunction (B)
1 sec.
MIL operation2 driving cycles
Sequence of operationNone
05C0Z-17

05-956- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1146 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0766 SHIFT SOLENOID ºDº PERFORMANCE
(SHIFT SOLENOID VALVE S4)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear position (1st, 2nd, 3rd or O/D
gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves and valve body.
DTC No.DTC Detecting ConditionTrouble Area
P0766The gear required by the ECM does not match the actual gear
when driving (2-trip detection logic)

Shift solenoid valve S4 remains open or closed

Valve body is blocked

Shift solenoid valve S4

Automatic transaxle (clutch, brake or gear etc.)

ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. According to the input shaft
revolution, intermediate (counter) shaft revolution and output shaft revolution, the ECM detects the actual
gear position (1st, 2nd, 3rd or O/D gear position). When the gear position commanded by the ECM and the
actual gear position are not same, the ECM illuminates the MIL and stores the DTC.
MONITOR STRATEGY
Related DTCs
P0766:
Shift solenoid valve S4/ON malfunction
Shift solenoid valve S4/OFF malfunction
Required sensors/ComponentsShift solenoid valve S4, Speed sensor (NT), Speed sensor (NC), Crankshaft posi-
tion sensor (NE)
Frequency of operationContinuous
Duration1 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
All:
Transmission rangeºDº
ECT (Engine coolant temperature)60°C (140°F) or more
TFT (Transmission fluid temperature)-20C (-4F) or more
TFT sensor circuitNot circuit malfunction
ECT sensor circuitNot circuit malfunction
Turbine speed sensor circuitNot circuit malfunction
Intermediate shaft speed sensor circuitNot circuit malfunction
Output speed sensor circuitNot circuit malfunction
Shift solenoid valve SL1 circuitNot circuit malfunction
Shift solenoid valve SL2 circuitNot circuit malfunction
Shift solenoid valve S4 circuitNot circuit malfunction
Electronic throttle systemNot circuit malfunction
05C11-19

05-1072- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E/U151F)
1262 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0771 SHIFT SOLENOID ºEº PERFORMANCE
(SHIFT SOLENOID VALVE SR)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves and valve body.
DTC No.DTC Detecting ConditionTrouble Area
P0771The gear required by the ECM does not match the actual gear
when driving (2-trip detection logic)

Shift solenoid valve SR remains open or closed

Valve body is blocked

Shift solenoid valve SR

Automatic transaxle (clutch, brake or gear etc.)

ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. According to the input shaft
revolution, intermediate (counter) shaft revolution and output shaft revolution, the ECM detects the actual
gear position (1st, 2nd, 3rd, 4th or 5th gear position). When the gear position commanded by the ECM and
the actual gear position are not same, the ECM illuminates the MIL and stores the DTC.
MONITOR STRATEGY
Related DTCsP0771: Shift solenoid valve SR/Rationality check
Required sensors/ComponentsShift solenoid valve SR, Speed sensor (NT), Speed sensor (NC), Crankshaft posi-
tion sensor (NE)
Frequency of operationContinuous
Duration
OFF malfunction (A)
1 sec.
OFF malfunction (B)
3.5 sec.
ON malfunction (A)
Continuous
ON malfunction (B) and (C)
0.8 sec.
MIL operation2 driving cycles
Sequence of operationNone
05C12-12